New Back 4 Blood Update Adds Offline Campaign With Progression - Game Informer

The highly-requested feature goes live later today.

Game Informer - A new Back 4 Blood update releasing today

Best Tips For Solo Players Starting Back 4 Blood's Offline Campaign

Game Informer - A new Back 4 Blood update releasing today

Back 4 Blood Roadmap Reveals New Co-Op Mode, Difficulty, And Solo Offline Release Timing - IGN

Game Informer - A new Back 4 Blood update releasing today

Back 4 Blood Roadmap Reveals New Co-Op Mode, Difficulty, And Solo Offline Release Timing - IGN

Back 4 Blood Roadmap Reveals New Co-Op Mode, Difficulty, And Solo Offline Release Timing - IGN

News - December, 2021

Back 4 Blood Content Roadmap Includes Story Expansion And Offline Solo Play - Game Informer

Back 4 Blood Solo Campaign Progression To Be Addressed by Turtle Rock Studios

Massive Back 4 Blood patch brings offline progression, rebalances all three difficulties and more